A drawer partition kit is described. The drawer partition kit comprises at least one partition board and a partition rack. The partition rack, applied in a drawer having a space, has a U-shaped space for storing things. The U-shape space has a size. The partition rack has slots under the U-shaped space for positioning the partition board and for reducing the size of the U-shaped space. The partition board has a first side plate for being positioned and has a vertical plate capable of being moved to change the space of the drawer. A plurality of such partition racks may be connected with each other. The materials of the partition rack may alternatively be metals or other materials having excellent weather-resistance and supporting forces.